Press door clamping device



Feb. 16, 1932. .1. BEHLE 1,845,117

PRESS DOOR CLAMPING DEVICE Filed Aug. 24, 1929 2 SheetsSheet 1 INVENTORBY do/e a 56/2/6 ATTORNEY Feb. 16, 1932. J; BEHLE 1,845,117

PRESS DOOR CLAMPING DEVICE Filed Aug. 24, 1929 2 sheets-sheet 2 N 6 5jg, 5 lNVENTOR 52 mm Y L/Q/g/Qfi 4 MFKW Patented Feb. 16, 1932 UNITEDSTATES PATENT OFFICE JOSEPH BEHLE, F DALLAS, TEXAS, ASSIGNOR TO THEMURRAY COMPANY, OF DALLAS,

TEXAS, A CORPORATION OF TEXAS PRESS DOOR CLAMPING DEVICE Applicationfiled August 24, 1929. Serial No. 388,216.

This inventionrelates to new and useful improvements in cotton pressdoor mechanism.

One object of the invention is to provide means for actuatingtheoperating shafts of door fastening elements such as are shown in theLetters Patent No. 1,7 06,663, issued to W. L. Hancock, March 26, 1929.

Another object of the invention is to provide improved means forsimultaneously revolving a pair of shafts in opposite directions by acommon operating member.

A further object of the invention is to provide operating means forpress door fastening devices arranged operative positively and in unisonand free from slippage.

A construction designed to carry out the invention will be hereinafterdescribed together with other features of the invention.

The invention will be more readily understood from a reading of thefollowing specifications and by reference to the accompanying drawingsin which an example of the invention is shown, and where Figure l is aside elevation of the upper position of a press equipped with operatingmeans constructed in accordance with the invention.

Figure 2 is an end elevation of the same.

Figure 3 is a sectional view of one of the gear units.

Figure 4: is a sectional view of the other gear unit.

Fig. 5 is a detail of one of the door fastening devices, and

Fig. 6 is a perspective view showing a modifled form of operating means.

In the drawings the numeral 10 designates a press box, 11 one of theframe standards, 12 a pair of channel beams secured to the sides of thestandard and supporting the top platen members 13, all of which may beof any approved construction.

On each channel beam 12 is mounted a plurality of hanger brackets 14:having bearing boxes 15 at their outer ends in which shafts 16 arejournaled. The shaft on each side of the press box overhangs acorrelated side door 17. A plurality of eccentrics 18 are fastened oneach shaft, three being shown, but the number may vary. It is preferableto mount the eccentrics adjacent the boxes 15, as is obvious.

Clamp arms 19 are hung from the eccentrics, each arm having a ring 20 atits upper end surrounding one of the eccentrics, so that upon a rotationof the eccentrics by the shaft, said arms will be raised and lowered.The arms have shoes 21 at their lower ends and the shoes on one side ofthe platen are connected with the shoes 011 the opposite side of bridlerods 22 extending through vertical slots 23 in the platen bars.

Each rod 22 has its ends penetrating the shoes and is screw threaded toreceive nuts 2%.. Coiled springs 25 (Fig. 5) are confined on the rodsbetween the shoes and the ends of the platen bars. Each shoe has a camface 26 for engaging the upper edge of the door 17 when the arms 19 arelowered, thus fastening said doors. All of the elements which have beenrecited are shown in the aforesaid Hancock patent and form no part ofthe present invention.

In carrying out the invention a transverse metal plate 27 is fastened onthe outer side of the standard 11 and the shafts 16 penetrate thisplate. A pair of gear housings 28 are fastened on the outer side of theplate and have bearing collars 29 receiving the ends of said shafts.

On each shaft within its respective housing is fastened a worm gear 80.Each has a depending worm box 31 having bearing collars 32 at its ends.A transverse operating or worm shaft 33 extends through one of the boxesand terminates in the box. On its exposed end the worm shaft has a handwheel 34 for manually rotating it.

In one of the boxes 31 a right hand worm screw 35 is fastened on theshaft 33 while in the other box a left hand worm screw 36 is secured onsaid shaft. By this arrangement the gears are revolved in oppositedirections when the worm shaft is rotated. Thus upon turning the handwheel 34 in one direction the shafts 16 are rotated to lower theclamping arms and upon turning it in the opposite direction the arms areraised.

Each gear housing and its contents constitutes a gear unit. The Wormgear operating means is positive and sturdy and permits the arms to beforced down over the edges of the doors, easily and readily. This 5means also assures a unified operation and precludes stoppage of theoperating parts. Further no fastening means is required to hold the arms19 elevated.

In Fig. 6 the plate 27 is omitted and the 10 gear housings 28 arepermitted to float on the shafts 16. This form has given satisfaction,but by use of the plate a more steady device is provided.

Various changes in the size and shape of the different parts, as Well asmodifications and alterations, may be made within the scope of theappended claim.

What I claim is: In a press door fastener operating device, thecombination with the frame of a press, of door fastener operating shaftsmounted horizontally on each side of the top of the frame, Worm gears,one on one end of each shaft, a horizontal actuating shaft extendingfrom one operating shaft to the other shaft, Worms on the actuatingshaft meshing with the gears, gear housings surrounding the gears andthe Worms and in Which the actuating shaft is journaled and supported,and a hand Wheel mounted on the actuating shaft, the housings beingmounted directly on the operating shafts.

In testimony whereof I aifix my signature.

JOSEPH BEHLE.

